I've made some progress on the two sleeves on two circular (actually I've done about 4 more inches since this pic was taken)
The yarn is rather slippery on the needles (Addi Turbos) but it's going well. Here are the modifications I'm making to create 3/4 length sleeves:
Start sleeves with the first Decrease Round (I cast on 54 stitches). I knit 5 rounds, then did 1 purl round. Then I knit 18 rounds before doing the decrease round. I plan on knitting until the piece measures 8.5 inches before starting the increase. I will then follow the directions as is until the sleeves meastures about 13 inches.
I hope it works out ok! I'll keep you guys updated.